void FrameBuffer::applyFBO()
{
CHECK_GL_ERROR_DEBUG();
glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*)&_previousFBO);
glBindFramebuffer(GL_FRAMEBUFFER, _fbo);
// CCASSERT(_fbo==0 || _fbo != _previousFBO, "calling applyFBO without restoring the previous one");
CHECK_GL_ERROR_DEBUG();
if(_fboBindingDirty && !isDefaultFBO())
{
CHECK_GL_ERROR_DEBUG();
if(RenderTargetBase::Type::Texture2D == _rt->getType())
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _rt->getTexture()->getName(), 0);
else
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, _rt->getBuffer());
CHECK_GL_ERROR_DEBUG();
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, nullptr == _rtDepthStencil ? 0 : _rtDepthStencil->getBuffer());
CHECK_GL_ERROR_DEBUG();
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, nullptr == _rtDepthStencil ? 0 : _rtDepthStencil->getBuffer());
CHECK_GL_ERROR_DEBUG();
CCLOG("FBO is %d _fbo %d color, %d ds", _fbo, RenderTargetBase::Type::Texture2D == _rt->getType() ? _rt->getTexture()->getName() : _rt->getBuffer(), nullptr == _rtDepthStencil ? 0 : _rtDepthStencil->getBuffer());
_fboBindingDirty = false;
}
if(GL_FRAMEBUFFER_COMPLETE != glCheckFramebufferStatus(GL_FRAMEBUFFER))
{
CCLOG("FrameBuffer Status Error %d", (int)glCheckFramebufferStatus(GL_FRAMEBUFFER));
}
CHECK_GL_ERROR_DEBUG();
}
bool FrameBuffer::init(uint8_t fid, unsigned int width, unsigned int height)
{
_fid = fid;
_width = width;
_height = height;
GLint oldfbo;
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &oldfbo);
glGenFramebuffers(1, &_fbo);
glBindFramebuffer(GL_FRAMEBUFFER, _fbo);
glBindFramebuffer(GL_FRAMEBUFFER, oldfbo);
// _rt = RenderTarget::create(width, height);
// if(nullptr == _rt) return false;
#if CC_ENABLE_CACHE_TEXTURE_DATA
_dirtyFBOListener = EventListenerCustom::create(EVENT_RENDERER_RECREATED, [this](EventCustom* event){
if(isDefaultFBO()) return;
GLint oldfbo;
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &oldfbo);
glGenFramebuffers(1, &_fbo);
glBindFramebuffer(GL_FRAMEBUFFER, _fbo);
glBindFramebuffer(GL_FRAMEBUFFER, oldfbo);
CCLOG("Recreate FrameBufferObject _fbo is %d", _fbo);
_fboBindingDirty = true;
});
Director::getInstance()->getEventDispatcher()->addEventListenerWithFixedPriority(_dirtyFBOListener, -1);
#endif
return true;
}
void FrameBuffer::applyFBO()
{
CHECK_GL_ERROR_DEBUG();
glBindFramebuffer(GL_FRAMEBUFFER, _fbo);
CHECK_GL_ERROR_DEBUG();
if(_fboBindingDirty && !isDefaultFBO())
{
CHECK_GL_ERROR_DEBUG();
if(RenderTargetBase::Type::Texture2D == _rt->getType())
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _rt->getTexture()->getName(), 0);
else
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, _rt->getBuffer());
CHECK_GL_ERROR_DEBUG();
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, nullptr == _rtDepthStencil ? 0 : _rtDepthStencil->getBuffer());
CHECK_GL_ERROR_DEBUG();
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, nullptr == _rtDepthStencil ? 0 : _rtDepthStencil->getBuffer());
CHECK_GL_ERROR_DEBUG();
CCLOG("FBO is %d _fbo %d color, %d ds", _fbo, RenderTargetBase::Type::Texture2D == _rt->getType() ? _rt->getTexture()->getName() : _rt->getBuffer(), nullptr == _rtDepthStencil ? 0 : _rtDepthStencil->getBuffer());
_fboBindingDirty = false;
}
if(GL_FRAMEBUFFER_COMPLETE != glCheckFramebufferStatus(GL_FRAMEBUFFER))
{
CCLOG("FrameBuffer Status Error %d", (int)glCheckFramebufferStatus(GL_FRAMEBUFFER));
}
CHECK_GL_ERROR_DEBUG();
}
FrameBuffer::~FrameBuffer()
{
{
CC_SAFE_RELEASE_NULL(_rt);
CC_SAFE_RELEASE_NULL(_rtDepthStencil);
glDeleteFramebuffers(1, &_fbo);
_fbo = 0;
_frameBuffers.erase(this);
#if CC_ENABLE_CACHE_TEXTURE_DATA
Director::getInstance()->getEventDispatcher()->removeEventListener(_dirtyFBOListener);
#endif
if (isDefaultFBO())
_defaultFBO = nullptr;
}
}
void FrameBuffer::attachDepthStencilTarget(RenderTargetDepthStencil* rt)
{
if(isDefaultFBO())
{
CCLOG("Can not apply depth stencil target to default FBO");
return;
}
if(nullptr != rt && (rt->getWidth() != _width || rt->getHeight() != _height))
{
CCLOG("Error, attach a render target Depth stencil with different size, Skip.");
return;
}
CC_SAFE_RETAIN(rt);
CC_SAFE_RELEASE(_rtDepthStencil);
_rtDepthStencil = rt;
_fboBindingDirty = true;
}
void FrameBuffer::attachRenderTarget(RenderTargetBase* rt)
{
if(isDefaultFBO())
{
CCLOG("Can not apply render target to default FBO");
return;
}
CC_ASSERT(rt);
if(rt->getWidth() != _width || rt->getHeight() != _height)
{
CCLOG("Error, attach a render target with different size, Skip.");
return;
}
CC_SAFE_RETAIN(rt);
CC_SAFE_RELEASE(_rt);
_rt = rt;
_fboBindingDirty = true;
}